What is the port configuration and switching capacity of the DCS-7050SX-64-R?

The DCS-7050SX-64-R features 48x 1/10GbE SFP+ ports and 4x 40GbE QSFP+ ports, providing 1.44Tbps full-duplex switching capacity and 1080Mpps forwarding performance. All ports operate at wire-speed with non-blocking architecture, supporting breakout of QSFP+ to 4x10G via DAC or optics.

What latency and buffering does the Arista DCS-7050SX-64-R offer?

It delivers 550ns port-to-port latency for L3 forwarding and 12MB shared dynamic buffer allocation (DBA), dynamically allocating buffers per port/queue to absorb microbursts in congested data center environments without packet loss.

What advanced networking features are supported by Arista EOS on this switch?

Arista EOS enables VXLAN overlay routing, VM Tracer for visibility, OpenFlow/DirectFlow, 288K MAC entries, 144K IPv4 routes, 128-way ECMP, MLAG, and 64-port LAGs. Extensibility includes Bash scripting, RPMs, and KVM for user apps.

How does the DCS-7050SX-64-R ensure high availability?

Features 1+1 hot-swappable AC PSUs, N+1 redundant fans with rear-to-front airflow, Stateful Fault Repair (SFR), Smart System Upgrade (SSU), and Accelerated Software Update (ASU) for hitless patching and MLAG for sub-second failover.

What management and monitoring capabilities are available?

Includes eAPI, SNMPv3, sFlow (RFC 3176), integrated TCPDump, Event Manager, CLI Scheduler, optional 120GB SSD for logging, USB restore, and Blue Beacon LED. Linux-based with Bash access for custom scripting and analytics.

Is the DCS-7050SX-64-R suitable for spine/leaf data center fabrics?

Yes, with 1.44Tbps capacity, low latency, VXLAN/ECMP support, and EOS automation, it excels in spine/leaf Clos topologies for hyperscale clouds, providing scalable bandwidth and resiliency for 10/40GbE underlays.

DCS-7050SX-64-R - Arista DCS-7050SX-64-R 48xSFP+ 4xQSFP+ 1.44Tbps Switch

Name: Arista DCS-7050SX-64-R 48xSFP+ 4xQSFP+ 1.44Tbps Switch
Brand: Arista
SKU: DCS-7050SX-64-R
Price: 288 USD
Availability: InStock

DCS-7050SX-64-R - Arista DCS-7050SX-64-R 48xSFP+ 4xQSFP+ 1.44Tbps Switch | US IT Hardware

Product overview

The Arista DCS-7050SX-64-R is a high-performance, fixed-port 1RU data center switch from the 7050X Series, optimized for 10/40GbE cloud networking environments. It provides 48x 1/10GbE SFP+ ports and 4x 40GbE QSFP+ ports with 1.44Tbps full-duplex switching capacity and 1080Mpps forwarding rate at wire-speed across all ports. Latency is ultralow at 550ns, supported by 12MB shared dynamic buffer allocation (DBA) for handling microbursts in high-density east-west traffic. Powered by a quad-core x86 CPU with 4GB DRAM and 4GB flash, it runs Arista EOS, enabling advanced features like VXLAN routing, VM Tracer, OpenFlow, 288K MAC entries, 144K IPv4 routes, and 128-way ECMP. Resiliency includes 1+1 hot-swappable AC PSUs, N+1 fans, front-to-rear airflow (R suffix), Stateful Fault Repair (SFR), Smart System Upgrade (SSU), and MLAG for non-stop operations. Ideal for data center top-of-rack (ToR), spine, leaf, and IP storage fabrics, it offers energy efficiency under 300W, tool-less rails, and extensibility with Linux tools, Bash scripting, and optional 120GB SSD for logging. Management via eAPI, SNMP, sFlow, and integrated TCPDump ensures operational simplicity at scale.

1.44Tbps full-duplex switching capacity.
48x 1/10GbE SFP+ and 4x 40GbE QSFP+ ports.
550ns low latency at wire-speed across all ports.
12MB dynamic buffer allocation for microbursts.
Quad-core x86 CPU with 4GB DRAM and EOS.
1+1 redundant PSUs and N+1 hot-swap fans.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Supported Optics
Manufacturer part #	DCS-7050SX-64-R
Brand	Arista
Condition	Refurbished
ECMP	128-way
MTBF	>1M hours
Model	7050SX-64
LAG Ports	Up to 64 ports per group
IPv4 Routes	144K host + IPv4 routes
Product Line	7050X Series
Product Type	Data Center Ethernet Switch
MAC Addresses	288K entries

Compatible systems

Native compatibility with Arista EOS ecosystem, standard SFP+/QSFP+ optics, and hot-swap components; MLAG for stacking.

Arista 7050X Series
Model: Any 7050X
Form factor: 1RU
Generation: Gen2/Gen3
MLAG clustering with identical models for L2 multi-chassis link aggregation.

Best for

Data Center Top-of-Rack
High-density 10GbE server connectivity with 40GbE uplinks for leaf deployments handling east-west traffic bursts.
Spine/Leaf Fabric
Scalable underlay/overlay with VXLAN, ECMP, and low latency for Clos architectures in hyperscale data centers.
Cloud Networking
VXLAN, VM Tracer, and EOS automation for multi-tenant cloud environments with resilient MLAG clustering.
IP Storage Fabric
Low-latency 10/40GbE for NVMe-oF and Ceph deployments with deep buffers for storage microbursts.
High Performance Computing
Wire-speed L2/L3 forwarding and 128-way ECMP for HPC cluster interconnects requiring sub-1us latency.
Enterprise Aggregation

Details

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SSD Storage	120GB optional
Flash Storage	4GB
Packet Buffer	12MB shared dynamic allocation
System Memory	4GB DRAM

Latency	550ns average L3
Forwarding Rate	1080 Mpps
Switching Capacity	1.44Tbps full-duplex

Fans	N+1 hot-swap
Form Factor	1RU rack-mount

Airflow	Rear-to-front (R suffix)
Operating Temperature	0° to 40°C

Ports	48 x 1/10GbE SFP+, 4 x 40GbE QSFP+
USB Ports	1x USB 2.0
Console Port	1x RS-232 RJ45
Management Ports	1x 10/100/1000BASE-T RJ45

Arista DCS-7050SX-64-R 48xSFP+ 4xQSFP+ 1.44Tbps Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Storage

Processor

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions